When I use CPU Load sensor, it's show above error. How can I solve it? WMI: Connection could not be established (RPC Server not accessible. Port Error (Socket Error # 10061 Connection refused.)

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Attention: This article is a record of a conversation with the Paessler support team. The information in this conversation is not updated to preserve the historical record. As a result, some of the information or recommendations in this conversation might be out of date.

Dear a23554,

If you see this precise error message, the port which all DCOM communication protocols are routed over is blocked. This very likely is the case because the RPC server on the monitored machine is:

  • blocked by a local firewall
  • blocked by domain policies
  • not running
  • running on a different port than specified in PRTG's setting for this computer A possible solution for this could be to add the device name and ip address in the probe host file and to use the ip address in the settings.

Please follow this link for more troubleshooting hints for WMI related issues.

Best, Felix


Aug, 2016 - Permalink